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Submission #769453

# Submission time Handle Problem Language Result Execution time Memory
769453 2023-06-29T15:15:11 Z nnin Arranging Shoes (IOI19_shoes) C++14
100 / 100
 120 ms 138612 KB 
#include<bits/stdc++.h>
using namespace std;

queue<int> posi[200002];
int n;

int fenwick[200002];
void update(int x, int k) {
    while(x<=n*2) {
        fenwick[x] += k;
        x += (x & -x);
    }
}
int query(int x) {
    int ret = 0;
    while(x>0) {
        ret += fenwick[x];
        x -= (x & -x);
    }
    return ret;
}

long long count_swaps(vector<int> S) {
    n = S.size()/2;
    long long ans = 0;
    for(int i=0;i<2*n;i++) {
        if(!posi[n-S[i]].empty()) {
            ans += i-query(posi[n-S[i]].front())+(S[i]<0);
            update(posi[n-S[i]].front(), 1);
            posi[n-S[i]].pop();
        } else {
            posi[n+S[i]].push(i+1);
            update(i+1, 1);
        }
    }
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 134864 KB Output is correct
2 Correct 63 ms 134908 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 134864 KB Output is correct
2 Correct 63 ms 134908 KB Output is correct
3 Correct 64 ms 134844 KB Output is correct
4 Correct 65 ms 134872 KB Output is correct
5 Correct 65 ms 134852 KB Output is correct
6 Correct 65 ms 134840 KB Output is correct
7 Correct 65 ms 134844 KB Output is correct
8 Correct 66 ms 134832 KB Output is correct
9 Correct 64 ms 134912 KB Output is correct
10 Correct 63 ms 134828 KB Output is correct
11 Correct 64 ms 134920 KB Output is correct
12 Correct 64 ms 134928 KB Output is correct
13 Correct 65 ms 134892 KB Output is correct
14 Correct 65 ms 134924 KB Output is correct
15 Correct 68 ms 134816 KB Output is correct
16 Correct 69 ms 134816 KB Output is correct
17 Correct 65 ms 134860 KB Output is correct
18 Correct 65 ms 134888 KB Output is correct
19 Correct 66 ms 134840 KB Output is correct
20 Correct 65 ms 134888 KB Output is correct
21 Correct 65 ms 134812 KB Output is correct
22 Correct 65 ms 134860 KB Output is correct
23 Correct 65 ms 134856 KB Output is correct
24 Correct 66 ms 134924 KB Output is correct
25 Correct 65 ms 134860 KB Output is correct
26 Correct 65 ms 134860 KB Output is correct
27 Correct 66 ms 134832 KB Output is correct
28 Correct 66 ms 134864 KB Output is correct
29 Correct 65 ms 134816 KB Output is correct
30 Correct 65 ms 134908 KB Output is correct
31 Correct 64 ms 134872 KB Output is correct
32 Correct 65 ms 134860 KB Output is correct
33 Correct 65 ms 134908 KB Output is correct
34 Correct 72 ms 134992 KB Output is correct
35 Correct 66 ms 134888 KB Output is correct
36 Correct 65 ms 134920 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 134864 KB Output is correct
2 Correct 63 ms 134908 KB Output is correct
3 Correct 65 ms 134836 KB Output is correct
4 Correct 65 ms 134928 KB Output is correct
5 Correct 65 ms 134864 KB Output is correct
6 Correct 64 ms 134868 KB Output is correct
7 Correct 64 ms 134880 KB Output is correct
8 Correct 65 ms 134864 KB Output is correct
9 Correct 66 ms 134860 KB Output is correct
10 Correct 65 ms 134924 KB Output is correct
11 Correct 65 ms 134832 KB Output is correct
12 Correct 65 ms 134856 KB Output is correct
13 Correct 65 ms 134860 KB Output is correct
14 Correct 65 ms 134840 KB Output is correct
15 Correct 64 ms 134872 KB Output is correct
16 Correct 64 ms 134928 KB Output is correct
17 Correct 65 ms 134840 KB Output is correct
18 Correct 64 ms 134928 KB Output is correct
19 Correct 65 ms 134860 KB Output is correct
20 Correct 67 ms 135156 KB Output is correct
21 Correct 67 ms 135244 KB Output is correct
22 Correct 87 ms 138492 KB Output is correct
23 Correct 89 ms 138488 KB Output is correct
24 Correct 89 ms 138524 KB Output is correct
25 Correct 86 ms 138316 KB Output is correct
26 Correct 86 ms 138492 KB Output is correct
27 Correct 82 ms 138260 KB Output is correct
28 Correct 84 ms 138484 KB Output is correct
29 Correct 93 ms 138520 KB Output is correct
30 Correct 83 ms 138612 KB Output is correct
31 Correct 86 ms 138480 KB Output is correct
32 Correct 92 ms 138496 KB Output is correct
33 Correct 86 ms 138300 KB Output is correct
34 Correct 89 ms 138600 KB Output is correct
35 Correct 66 ms 134920 KB Output is correct
36 Correct 66 ms 134896 KB Output is correct
37 Correct 89 ms 138540 KB Output is correct
38 Correct 96 ms 138540 KB Output is correct
39 Correct 92 ms 138560 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 134880 KB Output is correct
2 Correct 67 ms 134936 KB Output is correct
3 Correct 66 ms 134904 KB Output is correct
4 Correct 65 ms 134832 KB Output is correct
5 Correct 113 ms 138156 KB Output is correct
6 Correct 91 ms 138056 KB Output is correct
7 Correct 115 ms 138036 KB Output is correct
8 Correct 106 ms 138524 KB Output is correct
9 Correct 112 ms 138156 KB Output is correct
10 Correct 100 ms 138084 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 134864 KB Output is correct
2 Correct 63 ms 134908 KB Output is correct
3 Correct 64 ms 134844 KB Output is correct
4 Correct 65 ms 134872 KB Output is correct
5 Correct 65 ms 134852 KB Output is correct
6 Correct 65 ms 134840 KB Output is correct
7 Correct 65 ms 134844 KB Output is correct
8 Correct 66 ms 134832 KB Output is correct
9 Correct 64 ms 134912 KB Output is correct
10 Correct 63 ms 134828 KB Output is correct
11 Correct 64 ms 134920 KB Output is correct
12 Correct 64 ms 134928 KB Output is correct
13 Correct 65 ms 134892 KB Output is correct
14 Correct 65 ms 134924 KB Output is correct
15 Correct 68 ms 134816 KB Output is correct
16 Correct 69 ms 134816 KB Output is correct
17 Correct 65 ms 134860 KB Output is correct
18 Correct 65 ms 134888 KB Output is correct
19 Correct 66 ms 134840 KB Output is correct
20 Correct 65 ms 134888 KB Output is correct
21 Correct 65 ms 134812 KB Output is correct
22 Correct 65 ms 134860 KB Output is correct
23 Correct 65 ms 134856 KB Output is correct
24 Correct 66 ms 134924 KB Output is correct
25 Correct 65 ms 134860 KB Output is correct
26 Correct 65 ms 134860 KB Output is correct
27 Correct 66 ms 134832 KB Output is correct
28 Correct 66 ms 134864 KB Output is correct
29 Correct 65 ms 134816 KB Output is correct
30 Correct 65 ms 134908 KB Output is correct
31 Correct 64 ms 134872 KB Output is correct
32 Correct 65 ms 134860 KB Output is correct
33 Correct 65 ms 134908 KB Output is correct
34 Correct 72 ms 134992 KB Output is correct
35 Correct 66 ms 134888 KB Output is correct
36 Correct 65 ms 134920 KB Output is correct
37 Correct 64 ms 134928 KB Output is correct
38 Correct 63 ms 134876 KB Output is correct
39 Correct 65 ms 134908 KB Output is correct
40 Correct 66 ms 134868 KB Output is correct
41 Correct 65 ms 134860 KB Output is correct
42 Correct 65 ms 134860 KB Output is correct
43 Correct 68 ms 134856 KB Output is correct
44 Correct 64 ms 134892 KB Output is correct
45 Correct 67 ms 134936 KB Output is correct
46 Correct 68 ms 134904 KB Output is correct
47 Correct 66 ms 134876 KB Output is correct
48 Correct 65 ms 134916 KB Output is correct
49 Correct 66 ms 134860 KB Output is correct
50 Correct 66 ms 134880 KB Output is correct
51 Correct 66 ms 134900 KB Output is correct
52 Correct 65 ms 134920 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 134864 KB Output is correct
2 Correct 63 ms 134908 KB Output is correct
3 Correct 64 ms 134844 KB Output is correct
4 Correct 65 ms 134872 KB Output is correct
5 Correct 65 ms 134852 KB Output is correct
6 Correct 65 ms 134840 KB Output is correct
7 Correct 65 ms 134844 KB Output is correct
8 Correct 66 ms 134832 KB Output is correct
9 Correct 64 ms 134912 KB Output is correct
10 Correct 63 ms 134828 KB Output is correct
11 Correct 64 ms 134920 KB Output is correct
12 Correct 64 ms 134928 KB Output is correct
13 Correct 65 ms 134892 KB Output is correct
14 Correct 65 ms 134924 KB Output is correct
15 Correct 68 ms 134816 KB Output is correct
16 Correct 69 ms 134816 KB Output is correct
17 Correct 65 ms 134860 KB Output is correct
18 Correct 65 ms 134888 KB Output is correct
19 Correct 66 ms 134840 KB Output is correct
20 Correct 65 ms 134888 KB Output is correct
21 Correct 65 ms 134812 KB Output is correct
22 Correct 65 ms 134860 KB Output is correct
23 Correct 65 ms 134856 KB Output is correct
24 Correct 66 ms 134924 KB Output is correct
25 Correct 65 ms 134860 KB Output is correct
26 Correct 65 ms 134860 KB Output is correct
27 Correct 66 ms 134832 KB Output is correct
28 Correct 66 ms 134864 KB Output is correct
29 Correct 65 ms 134816 KB Output is correct
30 Correct 65 ms 134908 KB Output is correct
31 Correct 64 ms 134872 KB Output is correct
32 Correct 65 ms 134860 KB Output is correct
33 Correct 65 ms 134908 KB Output is correct
34 Correct 72 ms 134992 KB Output is correct
35 Correct 66 ms 134888 KB Output is correct
36 Correct 65 ms 134920 KB Output is correct
37 Correct 65 ms 134836 KB Output is correct
38 Correct 65 ms 134928 KB Output is correct
39 Correct 65 ms 134864 KB Output is correct
40 Correct 64 ms 134868 KB Output is correct
41 Correct 64 ms 134880 KB Output is correct
42 Correct 65 ms 134864 KB Output is correct
43 Correct 66 ms 134860 KB Output is correct
44 Correct 65 ms 134924 KB Output is correct
45 Correct 65 ms 134832 KB Output is correct
46 Correct 65 ms 134856 KB Output is correct
47 Correct 65 ms 134860 KB Output is correct
48 Correct 65 ms 134840 KB Output is correct
49 Correct 64 ms 134872 KB Output is correct
50 Correct 64 ms 134928 KB Output is correct
51 Correct 65 ms 134840 KB Output is correct
52 Correct 64 ms 134928 KB Output is correct
53 Correct 65 ms 134860 KB Output is correct
54 Correct 67 ms 135156 KB Output is correct
55 Correct 67 ms 135244 KB Output is correct
56 Correct 87 ms 138492 KB Output is correct
57 Correct 89 ms 138488 KB Output is correct
58 Correct 89 ms 138524 KB Output is correct
59 Correct 86 ms 138316 KB Output is correct
60 Correct 86 ms 138492 KB Output is correct
61 Correct 82 ms 138260 KB Output is correct
62 Correct 84 ms 138484 KB Output is correct
63 Correct 93 ms 138520 KB Output is correct
64 Correct 83 ms 138612 KB Output is correct
65 Correct 86 ms 138480 KB Output is correct
66 Correct 92 ms 138496 KB Output is correct
67 Correct 86 ms 138300 KB Output is correct
68 Correct 89 ms 138600 KB Output is correct
69 Correct 66 ms 134920 KB Output is correct
70 Correct 66 ms 134896 KB Output is correct
71 Correct 89 ms 138540 KB Output is correct
72 Correct 96 ms 138540 KB Output is correct
73 Correct 92 ms 138560 KB Output is correct
74 Correct 65 ms 134880 KB Output is correct
75 Correct 67 ms 134936 KB Output is correct
76 Correct 66 ms 134904 KB Output is correct
77 Correct 65 ms 134832 KB Output is correct
78 Correct 113 ms 138156 KB Output is correct
79 Correct 91 ms 138056 KB Output is correct
80 Correct 115 ms 138036 KB Output is correct
81 Correct 106 ms 138524 KB Output is correct
82 Correct 112 ms 138156 KB Output is correct
83 Correct 100 ms 138084 KB Output is correct
84 Correct 64 ms 134928 KB Output is correct
85 Correct 63 ms 134876 KB Output is correct
86 Correct 65 ms 134908 KB Output is correct
87 Correct 66 ms 134868 KB Output is correct
88 Correct 65 ms 134860 KB Output is correct
89 Correct 65 ms 134860 KB Output is correct
90 Correct 68 ms 134856 KB Output is correct
91 Correct 64 ms 134892 KB Output is correct
92 Correct 67 ms 134936 KB Output is correct
93 Correct 68 ms 134904 KB Output is correct
94 Correct 66 ms 134876 KB Output is correct
95 Correct 65 ms 134916 KB Output is correct
96 Correct 66 ms 134860 KB Output is correct
97 Correct 66 ms 134880 KB Output is correct
98 Correct 66 ms 134900 KB Output is correct
99 Correct 65 ms 134920 KB Output is correct
100 Correct 67 ms 134856 KB Output is correct
101 Correct 69 ms 135140 KB Output is correct
102 Correct 68 ms 135184 KB Output is correct
103 Correct 120 ms 138464 KB Output is correct
104 Correct 105 ms 138524 KB Output is correct
105 Correct 105 ms 138516 KB Output is correct
106 Correct 112 ms 138096 KB Output is correct
107 Correct 94 ms 138492 KB Output is correct
108 Correct 93 ms 138452 KB Output is correct
109 Correct 85 ms 138500 KB Output is correct
110 Correct 85 ms 138588 KB Output is correct
111 Correct 111 ms 138060 KB Output is correct
112 Correct 113 ms 138444 KB Output is correct
113 Correct 96 ms 138132 KB Output is correct
114 Correct 107 ms 138140 KB Output is correct
115 Correct 108 ms 138060 KB Output is correct